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76 lines
2.3 KiB
76 lines
2.3 KiB
**WiringPi 2 for Python**
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WiringPi: An implementation of most of the Arduino Wiring
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functions for the Raspberry Pi
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WiringPi2: WiringPi version 2 implements new functions for managing IO expanders.
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**Testing:**
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Build with gcc version 4.6.3 (Debian 4.6.3-14+rpi1)
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Built against Python 2.7.2, Python 3.2.3
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**Prerequisites:**
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You must have python-dev and python-setuptools installed
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If you manually rebuild the bindings with swig -python wiringpi.i
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**Get/setup repo:**
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git clone https://github.com/Gadgetoid/WiringPi2-Python.git
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cd WiringPi2-Python
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**Build & install with:**
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sudo python setup.py install
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Or Python 3
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sudo python3 setup.py install
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**Class-based Usage:**
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Description incoming!
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**Usage:**
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import wiringpi2
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wiringpi2.wiringPiSetup() // For sequential pin numbering, one of these MUST be called before using IO functions
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OR
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wiringpi2.wiringPiSetupSys() // For /sys/class/gpio with GPIO pin numbering
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OR
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wiringpi2.wiringPiSetupGpio() // For GPIO pin numbering
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Setting up IO expanders (This example was tested on a quick2wire board with one digital IO expansion board connected via I2C):
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wiringpi2.mcp23017Setup(65,0x20)
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wiringpi2.pinMode(65,1)
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wiringpi2.digitalWrite(65,1)
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**General IO:**
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wiringpi2.pinMode(6,1) // Set pin 6 to 1 ( OUTPUT )
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wiringpi2.digitalWrite(6,1) // Write 1 ( HIGH ) to pin 6
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wiringpi2.digitalRead(6) // Read pin 6
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**Setting up a peripheral:**
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WiringPi2 supports expanding your range of available "pins" by setting up a port expander. The implementation details of
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your port expander will be handled transparently, and you can write to the additional pins ( starting from PIN_OFFSET >= 64 )
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as if they were normal pins on the Pi.
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wiringpi2.mcp23017Setup(PIN_OFFSET,I2C_ADDR)
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**Soft Tone**
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Hook a speaker up to your Pi and generate music with softTone. Also useful for generating frequencies for other uses such as modulating A/C.
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wiringpi2.softToneCreate(PIN)
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wiringpi2.softToneWrite(PIN,FREQUENCY)
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**Bit shifting:**
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wiringpi2.shiftOut(1,2,0,123) // Shift out 123 (b1110110, byte 0-255) to data pin 1, clock pin 2
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**Serial:**
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serial = wiringpi2.serialOpen('/dev/ttyAMA0',9600) // Requires device/baud and returns an ID
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wiringpi2.serialPuts(serial,"hello")
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wiringpi2.serialClose(serial) // Pass in ID
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**Full details at:**
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http://www.wiringpi.com
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